122200211001221 has 16 divisors (see below), whose sum is σ = 129763848510720. Its totient is φ = 114828859432320.

The previous prime is 122200211001217. The next prime is 122200211001241. The reversal of 122200211001221 is 122100112002221.

It is a cyclic number.

It is not a de Polignac number, because 122200211001221 - 2² = 122200211001217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122200211001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122200211001241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52696385 + ... + 54966438.

It is an arithmetic number, because the mean of its divisors is an integer number (8110240531920).

Almost surely, 2^{122200211001221} is an apocalyptic number.

It is an amenable number.

122200211001221 is a deficient number, since it is larger than the sum of its proper divisors (7563637509499).

122200211001221 is a wasteful number, since it uses less digits than its factorization.

122200211001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107663716.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122200211001221 its reverse (122100112002221), we get a palindrome (244300323003442).

The spelling of 122200211001221 in words is "one hundred twenty-two trillion, two hundred billion, two hundred eleven million, one thousand, two hundred twenty-one".